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Unilateral megalencephaly in association with Dandy-Walker complex
J R Parikh1, K Mak, K M Shalay
1Department of Radiology, Kingston General Hospital, Queen's University, Ont.
Summary
Unilateral megalencephaly, a rare congenital anomaly, can be associated with Dandy-Walker complex. Computed tomography is a viable imaging option when magnetic resonance imaging is unavailable.
Area of Science:
- Neuroscience
- Developmental Biology
- Medical Imaging
Background:
- Unilateral megalencephaly is a rare congenital brain malformation characterized by asymmetric overgrowth of one cerebral hemisphere.
- The Dandy-Walker complex is a spectrum of congenital posterior fossa malformations.
- Understanding the embryonic pathogenesis of these conditions is crucial for diagnosis and management.
Observation:
- This report details a rare case of unilateral megalencephaly occurring concurrently with the Dandy-Walker complex.
- The study discusses the potential embryonic developmental pathways leading to both conditions.
Findings:
- The co-occurrence of unilateral megalencephaly and Dandy-Walker complex, while rare, presents a unique diagnostic challenge.
- Embryonic pathogenesis provides insight into the simultaneous development of these distinct neurological anomalies.
Implications:
- Computed tomography (CT) serves as a practical alternative for documenting these abnormalities when magnetic resonance imaging (MRI) is not accessible.
- This case highlights the importance of considering complex congenital anomalies in neurodevelopmental assessments.
- Further research into the shared embryonic origins may reveal novel therapeutic targets.